Frontmatter -- Preface -- Contents -- The Vegetation in the Sea / Levring, Tore -- Classification of the Algae / Levring, Tore -- Marine Algae as Raw Materials / Hoppe, H. A. -- Commercial Products / Hoppe, Heinz A. / Schmid, Otto J. -- Various Substances / Schmid, Otto J. -- General Literature -- Taxonomic Index -- Subject Index -- Backmatterweiterlesen